Java开发网 - 关于Thread的问题

Topic: 关于Thread的问题

1.关于Thread的问题	Copy to clipboard
Posted by: xren Posted on: 2002-12-13 12:47 当程序从run method 退出后是不是就等于那个thread 已经死了？当一个 thread 已经死了，可不可以再用start method 从新开始那个 thread ? 谢谢

2.about thread [Re: xren]	Copy to clipboard
Posted by: snowbug Posted on: 2002-12-13 13:05 The thread is dead after finish the execution of the run() method. Thread can only start once. So you can not call start() again to reuse it.

3.Re:关于Thread的问题 [Re: xren]	Copy to clipboard
Posted by: floater Posted on: 2002-12-13 13:30 Theoritically, you can start that piece of code again, but that particular thread is out of the scope in runtime since it's dead. In java, when you fire off the run() in a thread, after that it's done. But you run always get a new thread with the same piece of code and start run().

4.use Runnable [Re: xren]	Copy to clipboard
Posted by: cameo Posted on: 2002-12-15 06:10 you can use Runnable interface to continue a dead thread.

5.关于Thread的问题 [Re: xren]	Copy to clipboard
Posted by: xren Posted on: 2002-12-15 16:05 我试了用Runnable interface 也不能 restart a thread 如果直接调用run的话，也不从新开始一个新的 thread. 如果一个thread 已经死了，就不能在调用start()开始一个新的thread. 不知道这个结论是不是对了谢谢各位帮忙

6.Yes! [Re: xren]	Copy to clipboard
Posted by: 烂泥 Posted on: 2002-12-15 22:09 失掉的是肉体(Thread) l灵魂不会消失（Runable）要想重生，就只能投胎再来（new)

7.Re:use Runnable [Re: cameo]

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Posted by: snowbug
Posted on: 2002-12-16 23:25

cameo wrote:
you can use Runnable interface to continue a dead thread.

I don't think you can restart a dead thread. According to the language specification, a dead thread is dead and you simply can not restart it. However, like javaduke said, you can create a new thread use the same runnable object:
new Thread((Runnable)deadThread).start();
But make sure you've reset all the fields that might affects the execution of the thread.

8.Re:关于Thread的问题 [Re: xren]	Copy to clipboard
Posted by: taogang Posted on: 2002-12-17 13:02 It's impossible to reuse a dead thread, however, it's possible to make a dead thread looks like been reused, your goal is the most important thing.